The 12: Preached the death of Christ as BAD news for Israel. Peter and Stephen, speaking by the Holy Spirit, indicted Israel for the murder of her King, commanding her to repent:
Men of Israel, hear these words: Jesus of Nazareth, a Man attested by God TO YOU by miracles, wonders, and signs which God did through Him in your midst, and YOU YOURSELVES did know--Him, being delivered by the determined purpose and foreknowledge of God, YOU have taken by lawless hands, have crucified, and put to death ... Therefore let all the house of Israel know assuredly that God has made this Jesus, whom YOU crucified, both Lord and Christ (Acts 2:22-36).
But YOU denied the Holy One and the Just, and asked for a murderer to be granted to you, and killed the Prince of life...Repent therefore and be converted, that your sins may be blotted out, so that times of refreshing may come from the presence of the Lord, and He may send Jesus Christ, who was preached to you before (Acts 3:14-20).
We ought to obey God rather than men. The God of our fathers raised up Jesus whom YOU murdered by hanging on a tree. Him God has exalted to His right hand, Prince and Savior, to give repentance TO ISRAEL and forgiveness of sin (Acts 5:29-31).
You stiff necked and uncircumcised in heart and ears! YOU always resist the Holy Spirit; as your fathers did, so do YOU. Which of the prophets did they not persecute? And they killed those who foretold the coming of the Just One, of whom YOU now have become the betrayers and murderers (Acts 7:51-52).
Paul: Preached the death of Christ as GOOD news for individual Jews and Gentiles. Though Israel did not know it (no one did), her murder of Messiah was the one and only sacrifice that can reconcile
all people to God:
For as you [Gentiles] were once disobedient to God, yet have now obtained mercy through [Israel's] disobedience, even so [Israel] also has now been disobedient, that through the mercy shown you they also may obtain mercy. For God has committed them all to disobedience, that He might have mercy on all. Oh the depth of the riches both of the wisdom and knowledge of God! How unsearchable are His judgments and His ways past finding out! (Rom. 11:30-33)
For the message of the cross is foolishness to those who are perishing, but to us who are being saved it is the power of God ... Has not God made foolish the wisdom of the world? For since, in the wisdom of God, the world through wisdom did not know God, it pleased God through the foolishness of the message preached to save those who believe (1 Cor. 1:18-21).
Grace to you and peace from God the Father and our Lord Jesus Christ, Who gave Himself for our sins, that He might deliver us from this present evil age, according to the will of our God and Father, to whom be the glory forever and ever. Amen (Gal. 1:3-5).
But the Scripture has confined all under sin, that the promise by faith in Jesus Christ might be given to those who believe (Gal. 3:22).
He has delivered us from the power of darkness and conveyed us into the kingdom of the Son of His love, in Whom we have redemption through His blood, the forgiveness of sins (Col.1:13-14).